Home / 18,822.56-25,974.48-10,439.84

Finding the Fourth Proportional to 18,822.56, 25,974.48 and 10,439.84

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Solution

The fourth proportional to 18,822.56, 25,974.48 and 10,439.84 is: 14,406.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.56 : 25,974.48 = 10,439.84 : x
  2. Step 2: Convert to fraction form
    18,822.56/25,974.48 = 10,439.84/x
  3. Step 3: Cross multiply
    18,822.56x = 25,974.48 × 10,439.84
  4. Step 4: Simplify right side
    18,822.56x = 271,169,415.28
  5. Step 5: Solve for x
    x = 271,169,415.28/18,822.56
  6. Step 6: Final answer
    x = 14,406.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.